Wireless networks are less secure than wired ones. That is simply due to the nature of broadcast-based communication mode. Therefore, Wifi security is always important. There are a few ways to minimize Wi-Fi intrusion, and one of the first things people do is hide the WiFi network and the router so that others cannot connect to the hidden network. This article will show you how to hide a WiFi network, discussing the security of hiding it.
Why should hide Wifi network?
According to the IEEE 802.11 standard, each wireless network must have an identifier used by the device to connect to the network called a Service Set Identifier (SSID), in plain words called the network name.
Every 100 milliseconds, routers broadcast a beacon frame, which is a transmitter containing information about the network, including the SSID, to indicate that the network exists. If the router is like a human and it says “I’m here, my name is Cisco04022. If you hear me, you can use that name to connect with me ”. Here’s how your phone knows about all the Wi-Fi networks around. If you prevent the router from notifying other devices of its existence, it becomes invisible. And the devices will not know and not be able to connect.
Limitations of hiding network SSIDs
The wireless signals are the same, starting at one source (router) and going out in all directions (like a constantly expanding sphere). There is no way to capture the signal transmitted in a beam from the router to a particular device, and even when you can aim it, you cannot stop the signal as soon as it reaches the device.
Let’s say your wireless network doesn’t broadcast the SSID, nobody knows of its existence except you. You establish a connection to it and use the Wifi network as usual. However, when accessing the website, the router sends a signal to the website and computer data to receive. Do you see any problem here? The Wifi signal must travel through open air to reach the computer, so anyone within its radius can block the signal.
In other words, even if you hide your SSID, hackers and malicious people can detect it by blocking 1) the device’s signal from reaching the router and 2) the router’s signal from reaching the device.
How to hide SSID or WiFi network
As mentioned above, hiding the WiFi network does not guarantee the security of your WiFi network. However, nowadays some parts of the world require that the WiFi name not be displayed in public mode, so it is necessary to hide the SSID.
Depending on the Router and the manufacturer, the way to hide the SSID may be different because you need to visit the Router configuration page to change with a different Router IP address. For example, most Netgear users can access this configuration by going to routerlogin.net. Note, you need a wired LAN connection to the router to log into the browser.
In the web browser, we visit the Router’s configuration page. Typically, an IP address will be in the form http://192.168.0.1 or http://192.168.1.1. Or more accurately see the device for the IP address.
You enter the User login information and password in accordance with the information provided on the Router device or in the instruction manual.
Next, look at the section’s navigation bar Wireless. If there is a small menu, you can find something similar Wireless Settings, Wireless Options, Wireless > Basic Settings, vv …
You can adjust SSID, channel, channel mode, channel width on this page but here you need to find option Enable SSID Broadcast and deselect it. Depending on the router model, it has other names like Visibility Status, Enable Hidden Wireless or SSID Broadcast:
Hiding WiFi, hiding WiFi network SSID is not a method for users to secure WiFi network. It simply does not show the WiFi network name in the list of WiFI detectors on laptop or mobile devices only. Thus, we will only limit the situation of unauthorized access, “pagoda” access to the WiFi network.
If you really want to secure your network, you need to do the following:
1. Change default admin information. Just do a quick search on the Internet and you can see the default admin password and username of most routers. If you do not change this information, the other privacy settings become useless. This is the first thing you need to do with any router.
2. Encrypt using WPA2 and AES. As noted above, routers always signal in all directions, but you can encrypt them so they won’t be blocked. This means that only your computer can read the signal.
3. Disable the WPS and UPnP features. These are nifty features that have many major security holes, mainly the ability to circumvent other security features (like firewalls), so it’s a good idea to turn them off as soon as possible.
Other tips for home Wi-Fi networks
When setting a password for the network, make sure you choose a strong one and this applies to both the administrator password and the Wifi connection password.
If you have a wireless dead zone or poor Wifi signal in your home or apartment, you can deal with it by using a Wifi extender or powerline adapter.
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I wish you all success!